Ip Domain Lookup Asa
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I have an asa that can ping ip addresses outside the network but cannot resolve the domain names for those addresses.
Ip domain lookup asa. Introduced within cisco asa version 8 4 2 cisco added the ability to allow traffic based on the fqdn i e domain name. I have the relevant configs listed below. When you add a domain name to the static database the asa waits 1 minute and then sends a dns request for that domain name and adds the domain name ip address pairing to the dns host cache. Interface gigabitethernet0 0 nameif outside security level 0.
Specifies the address of one or more name servers to use for name and address resolution. This is a default command. The outside interface is configured as follows. By default dns lookups are enabled you would disable with a no ip domain lookup command.
But let s make sure. Specifies the number of times to retry sending dns queries. Looks up to 10 ip addresses at the same time.
Whilst in enable mode enter configure terminal mode then enable dns lookups. This action is a background process and does not affect your ability to continue configuring the asa. Then specify the external dns servers change ip addresses appropriately. Please help me to get the dns working on the asa device.
Ciscoasa conf t ciscoasa config dns domain lookup outside. Although we try to be precise with the lookup location and other details regarding a certain ip or domain we cannot guarantee 100 accuracy. Determines your ip address and shows information host location whois about any ip address entered. Enables the ip dns based host name to address translation.
I have cisco asa 5510 from asa cli i can not resolved the hostname. This command allows the router to assume that any non keyword entered in the command console is supposed to be resolved into an ip address. Most people disable this command as it can be a frequent annoyance to those who mistype words on a regular basis. Cisco no ip domain lookup 명령어 잘못 입력시 dns 서버 찾지 않기 network 2014.
This feature works by the asa resolving the ip of the fqdn via dns which it then stores within its cache. Translating eee domain server 255 255 255 255 sw1 config no ip domain lookup.
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